Add '-dcrop' option to ps and svg backends

[lilypond.git] / scripts / auxiliar / make-regtest-pngs.sh

diff --git a/scripts/auxiliar/make-regtest-pngs.sh b/scripts/auxiliar/make-regtest-pngs.sh
index 5942e279da8269f653145d69c946c7ebd7f76950..d5ee847bc624968edc770e0079b8e632a405ec21 100755 (executable)
--- a/scripts/auxiliar/make-regtest-pngs.sh
+++ b/scripts/auxiliar/make-regtest-pngs.sh
@@ -9,29 +9,80 @@
 #
 #    ./make-regtest-pngs.sh -j9
 #
+#   -p uses GNU parallel with the given job count in order to also
+#   parallelize the conversion of PDF files to bitmaps when using -g
+#   or -d.  No attempt is made to parallelize the bitmap comparisons
+#   since their memory requirements may be prohibitive.
+#
 #   -o means build an old regtest set - the PNGs go in the old-regtest-results
 #   directory
 #
 #   -n means build a new regtest set - the PNGs go in the new-regtest-results
 #   directory
+#
+#   -c uses PDF and the poppler library via pdftocairo for generating
+#   bitmaps, simulating the output for Evince and other previewers
+#   using poppler.  pdftocairo may be contained in the poppler-utils
+#   package.
+#
+#   -r can be used for specifying a rendering resolution.  This
+#   defaults to 101 for poppler and 300 for Ghostscript from PDF.
+#
+#   -g uses Ghostscript for rendering a bitmap version from the PDF,
+#   simulating the output from printing PDF files on a GNU system, so
+#   use a resolution appropriate for print.  Antialiasing is not enabled.
+#
+#   -d changes the Ghostscript device used for creating PNG files
+#   (usually png16m for direct PNG creation and pngmono for printer simulation)
+#
+#   if any filenames follow, those are the tests to run.  In absence
+#   of any filenames, the contents of input/regression are used.
 
-cpu_count=1
+cpu_count=${CPU_COUNT:-1}
+backend_opt='--png ${resolution:+=-dresolution=$resolution} ${gsdevice:+=-dpixmap-format=$gsdevice}'
+resolution=
+gsdevice=
+use_parallel=n
 
-while getopts "j:on" opts; do
-    if [ "$opts" = "j" ]; then
-        cpu_count=$OPTARG
-    fi
+while getopts "j:oncr:gpd:" opts; do
+    case $opts in j)
+            cpu_count=$OPTARG;;
+       
+       o)
+            file_loc="old-regtest-results";;
 
-    if [ "$opts" = "o" ]; then
-        file_loc="old-regtest-results"
-    fi
+       c)
+           backend_opt="--pdf"
+           png_generate()
+           {
+               $1 pdftocairo -png -r ${resolution:-101} -q "$2"
+           };;
 
-    if [ "$opts" = "n" ]; then
-        file_loc="new-regtest-results"
-        do_compare="y"
-    fi
+       n)
+            file_loc="new-regtest-results"
+            do_compare="y";;
+
+       r)
+           resolution=$OPTARG;;
+       g)
+           backend_opt="--pdf"
+           png_generate()
+           {
+               $1 gs -sDEVICE=${gsdevice:-pngmono} -q -dNOPAUSE \
+                   -r${resolution:-300} -dNOPLATFONTS \
+                   -dAutoRotatePages=/None \
+                   -dTextAlphaBits=1 -dGraphicsAlphaBits=1 \
+                   -sOutputFile="${2%.pdf}-%d.png" "$2" -c quit
+           };;
+       p)
+           use_parallel=y;;
+       d)
+           gsdevice=$OPTARG;;
+    esac
 done
 
+shift $((OPTIND-1))
+
 if [ -z "$file_loc" ]; then
     echo "Must specify old (-o) or new (-n) regtest PNG creation on command line"
     exit 1
@@ -39,11 +90,42 @@ fi
 
 rm -rf $LILYPOND_BUILD_DIR/out-png-check/$file_loc
 mkdir -p $LILYPOND_BUILD_DIR/out-png-check/$file_loc
+OLDPWD="$PWD"
 cd $LILYPOND_BUILD_DIR/out-png-check/$file_loc
-ls $LILYPOND_GIT/input/regression/*.ly > dir.txt
-$LILYPOND_BUILD_DIR/out/bin/lilypond --png --relocate \
+if [ "$*" = "" ]
+then
+    ls $LILYPOND_GIT/input/regression/*.ly > dir.txt
+else
+    : > dir.txt
+    for i
+    do
+       case "$i" in /*)
+               echo "$i" >> dir.txt;;
+           *)
+               echo "$OLDPWD/$i" >> dir.txt
+       esac
+    done
+fi
+
+$LILYPOND_BUILD_DIR/out/bin/lilypond $(eval echo $backend_opt) --relocate \
     -dinclude-settings=$LILYPOND_GIT/scripts/auxiliar/NoTagline.ly \
     -djob-count=$cpu_count -dread-file-list "dir.txt"
+if [ "$backend_opt" = "--pdf" ]
+then
+    if [ $use_parallel = y ]
+    then
+       for i in *.pdf
+       do
+           png_generate echo $i
+       done | parallel -j $cpu_count
+       rm *.pdf
+    else
+       for i in *.pdf
+       do
+           png_generate "" $i && rm "$i"
+       done
+    fi
+fi
 rm -rf dir.txt
 rm -rf *.log
 
@@ -54,7 +136,7 @@ if [ -n "$do_compare" ]; then
     diff_count=0
     for filename in new-regtest-results/*.png; do
         trimFile=$(basename $filename)
-        if [ -e old-regtest-results/$trimFile ]; then
+        if [ -e "old-regtest-results/$trimFile" ]; then
             convert new-regtest-results/$trimFile -level 50%  NewTest.png
             convert old-regtest-results/$trimFile -level 50%  OldTest.png
             difference=$(compare -metric AE NewTest.png OldTest.png null: 2>&1 )